Mahjong machine
By using a connecting device with the lock and lock core in a mahjong machine, combined with the coordination of the positioning pin and the pin hole, the problem of difficult to tighten and easy to fall of the frame bar is solved, and the connection stability and maintenance convenience are improved sex.
Patent Information
- Application Number
- CN202420876457.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The frame bars of existing mahjong machines are difficult to fasten and easily fall off, resulting in damage and mahjong machine damage.
Using a connecting device including a clamping fitting buckle and a lock core, the connecting frame bar and the main unit is achieved through the clamping connection between the lock core, and the matching of the positioning pin and the pin hole is restricted to the sliding and opposite of the frame bar. Displacement.
It improves the connection stability of the frame bar and the mahjong machine, reduces the possibility of damage to the frame bar and the mahjong machine, and simplifies the removal and maintenance process of the frame bar.
Smart Images

Figure CN222488850U_ABST
Abstract
Description
Technical Field
[0001] The utility model shows a mahjong machine, belonging to the technical field of mahjong machines. Background Art
[0002] Playing mahjong is a very popular entertainment activity. Mahjong machines can bring people a more convenient and enjoyable experience. However, the overall size of the mahjong machine is large and it will take up a large space during use. In order to avoid the mahjong machine still taking up a large space when not in use, there is a foldable mahjong machine in the prior art. The host of the mahjong machine is rotatably connected with the column so that the host can rotate around the top of the column. When not in use, the host is controlled to flip so that the desktop of the host is placed vertically, thereby effectively reducing the space occupied by the mahjong machine.
[0003] The main body of the mahjong machine includes a middle cover plate and a frame strip covering the middle cover plate. The frame strip is generally made of plastic or wood. When folded, the plastic frame strip can be fastened by a mold design buckle to prevent the frame strip from falling. However, the wooden frame needs to be fixed with some limiters separately. In addition, the weight of the wooden frame strip is much greater than that of the plastic frame strip. Therefore, it is difficult to fasten it and it is easy to fall off when folded, which causes damage to the frame strip and even damage to the mahjong machine. Summary of the invention
[0004] The utility model aims to solve the problem that the existing frame pressing strip is difficult to fasten and easy to fall off, and provides a mahjong machine to improve the connection stability between the frame pressing strip and the host.
[0005] To solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A mahjong machine comprises a main machine, wherein the upper surface of the main machine is provided with a cover plate, a frame located on the outer peripheral side of the cover plate and a frame pressing strip installed on the frame, a connecting device is provided between the frame pressing strip and the frame, the connecting device comprises a snap-fit lock buckle and a lock core, one of the lock buckle and the lock core is provided on the frame, and the other is provided on the lower surface of the frame pressing strip, the lock buckle and the lock core are separated by external force after being snap-fitted, a positioning pin is further provided between the frame pressing strip and the frame, and the frame and / or the frame pressing strip are provided with a pin hole for the positioning pin to extend into.
[0007] The beneficial effects of adopting the utility model are:
[0008] The connecting device described in the utility model comprises a lock buckle and a lock core that are engaged with each other. The connection between the pressure frame strip and the host is realized by the engagement of the lock buckle and the lock core, which can increase the connection stability between the pressure frame strip and the host. When the mahjong machine needs to be repaired, applying an external force to the pressure frame strip can separate the lock buckle from the lock core, thereby realizing the disassembly of the pressure frame strip, which can reduce the difficulty of disassembly of the pressure frame strip, so as to facilitate the repair of the mahjong machine. In addition, the positioning pin is plug-in-matched with the pin hole. After the mahjong machine is folded, the pressure frame strip has a tendency to slide downward under the action of its own gravity. At this time, the positioning pin and the inner wall of the pin hole are abutted, thereby limiting the automatic sliding of the pressure frame strip. On the basis of the positioning pin and the pin hole, the effects of the lock buckle and the lock core are added to limit the relative displacement of the pressure frame strip and the mahjong machine in the axial direction of the positioning pin, thereby reducing the possibility of the positioning pin being separated from the pin hole. When the mahjong machine is in a folded state, the connecting device adopts a double structure to limit the pressure frame strip from being separated from the mahjong machine, thereby effectively improving the connection stability between the pressure frame strip and the mahjong machine, and reducing the possibility of damage to the pressure frame strip and the mahjong machine.
[0009] Preferably, the lock buckle includes a card block, a reset member and a slot for inserting the lock core, the reset member acts on the card block and makes the card block have a movement tendency to reduce the slot opening, and the card block and / or the lock core are provided with a guide surface for guiding the lock core to escape from the slot. With the above technical solution, after the lock core is inserted into the slot, under the action of the reset member, the card block and the lock core are abutted, thereby reducing the possibility of the lock core arbitrarily escaping from the slot and improving the stability of the connection between the lock buckle and the lock core; in addition, the guide surface can reduce the external force required for the lock core to be inserted into and out of the slot, making the insertion and detachment of the lock core more labor-saving, and facilitating the installation and removal of the frame strip, so as to facilitate the maintenance of the mahjong machine, and at the same time, it can also reduce the jamming of the lock buckle and the lock core.
[0010] Preferably, the lock buckle further comprises a base, the base is provided with two fixing blocks, the slot is formed between the two fixing blocks, a mounting hole is provided in the fixing block, the card block is slidably connected in the mounting hole, and the reset member acts on the card block to make the card block partially exposed from the mounting hole and extend into the slot. With the above technical solution, the mounting hole makes the card block slide more smoothly, and can also limit the card block, reducing the possibility of displacement of the card block.
[0011] Preferably, the mounting hole passes through the fixing block and is connected to the slot, an adjusting member is threadedly connected to one end of the mounting hole away from the slot, and the reset member is limited between the clamping block and the adjusting member. With the above technical solution, the adjusting member can adjust the compression degree of the reset member, thereby changing the external force required for the insertion and disengagement of the lock cylinder, so that the mahjong machine can be connected to the pressure frame strips of different weights. At the same time, through the adjusting member, the external force required for the removal of the pressure frame strip can be minimized while ensuring the stable connection of the pressure frame strip, so as to facilitate the maintenance of the mahjong machine.
[0012] Preferably, a step surface is provided at one end of the mounting hole close to the slot, and a limiting rib is provided on the outer peripheral side of the clamping block, and the step surface and the limiting rib abut against each other to limit the clamping block from leaving the mounting hole. By adopting the above technical solution, the cooperation between the step surface and the limiting rib can reduce the possibility of the clamping block leaving the mounting hole, thereby improving the stability of the overall structure of the lock buckle, which is conducive to increasing the service life of the lock buckle.
[0013] Preferably, the side wall of the lock core is provided with a groove, the lock core is inserted into the slot so that the card block is embedded in the groove, and the guide surface is arranged between the end of the lock core and the groove. With the above technical solution, after the lock core is inserted into the slot, the card block cooperates with the groove, which can reduce the possibility of the lock core arbitrarily detaching from the slot, thereby improving the connection stability between the pressure frame strip and the mahjong machine.
[0014] Preferably, the frame pressing strip comprises an edge portion and a corner portion, the corner portion is located at the connection between two adjacent edge portions, the pin hole is arranged at the bottom end surface of the corner portion, and the positioning pin is integrally formed with the frame.
[0015] This embodiment also shows a mahjong machine, including a main machine, the upper surface of the main machine is provided with a cover plate, a frame on the outer peripheral side of the cover plate and a pressure frame strip installed on the frame, a connecting device is provided between the pressure frame strip and the frame, the connecting device includes an adsorbing magnetic component and an adsorbing body, one of the magnetic component and the adsorbing body is arranged on the frame, and the other is arranged on the pressure frame strip, a positioning pin is also provided between the pressure frame strip and the frame, and the frame and / or the pressure frame strip are provided with a pin hole for the positioning pin to extend into.
[0016] By adopting the above-mentioned technical scheme, the adsorption force generated between the magnetic suction member and the adsorption body can increase the connection strength between the pressure frame strip and the mahjong machine, reduce the possibility of the pressure frame strip automatically falling off after the mahjong machine is folded, and further improve the connection strength between the pressure frame strip and the mahjong machine; in addition, the positioning pin and the pin hole are plugged into each other. After the mahjong machine is folded, the pressure frame strip tends to slide downward under the action of its own gravity. At this time, the positioning pin and the inner wall of the pin hole are abutted against each other, thereby limiting the automatic sliding of the pressure frame strip. On the basis of the positioning pin and the pin hole, the action of the magnetic suction member and the adsorption body is added to limit the relative displacement of the pressure frame strip and the mahjong machine in the axial direction of the positioning pin, reducing the possibility of the positioning pin detaching from the pin hole. When the mahjong machine is in a folded state, the connecting device adopts a double structure to limit the pressure frame strip from detaching from the mahjong machine, thereby effectively improving the connection stability between the pressure frame strip and the mahjong machine, and reducing the possibility of damage to the pressure frame strip and the mahjong machine.
[0017] Preferably, the magnetic attraction part is arranged on the frame, the adsorbent is a metal part, the adsorbent is fixed to the frame pressure strip, and is distributed along the length direction of the frame pressure strip; or the adsorbent is a magnet, the adsorbent is installed at the bottom of the frame pressure strip and corresponds to the magnetic attraction part.
[0018] The frame pressing strip comprises an edge portion and a corner portion, wherein the corner portion is located at the connection between two adjacent edge portions, a pin hole is arranged at the bottom end surface of the corner portion, and the positioning pin is integrally formed with the frame.
[0019] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described below in conjunction with the accompanying drawings:
[0021] Figure 1 This is an exploded view of the mahjong machine and the frame pressing strip in the first embodiment of the utility model;
[0022] Figure 2 This is an exploded view of the lock buckle and the lock core in the first embodiment of the utility model;
[0023] Figure 3 This is an exploded view of the positioning pin and the frame pressing strip in the first embodiment of the utility model;
[0024] Figure 4 This is an exploded view of the magnetic attraction component and the metal component in the second embodiment of the present invention.
[0025] Figure numerals: 1 mahjong machine, 11 support base, 12 column, 13 host, 131 frame, 132 chip box, 2 frame pressure strip, 21 edge, 22 corner, 23 pin hole, 31 lock, 311 base, 312 fixing block, 313 slot, 314 card block, 315 adjustment member, 32 lock core, 321 mounting seat, 322 groove, 323 guide surface, 33 magnetic suction member, 34 adsorbent, 35 positioning pin. DETAILED DESCRIPTION
[0026] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.
[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "plurality" means two or more, unless otherwise clearly defined.
[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example
[0030] like Figures 1 to 3 As shown, this embodiment shows a mahjong machine 1, including a support base 11, a column 12 and a main body 13, the column 12 is rotatably connected to the main body 13, the upper surface of the main body 13 is provided with a cover plate, a frame 131 on the outer peripheral side of the cover plate and a pressure frame strip 2 installed on the frame 131, a connecting device is provided between the frame 131 and the pressure frame strip 2, the connecting device includes a lock buckle 31 and a lock core 32 that are snap-fitted, one of the lock buckle 31 and the lock core 32 is arranged on the frame 131, and the other is arranged on the lower surface of the pressure frame strip 2, the lock buckle 31 and the lock core 32 are snap-fitted to achieve separation through external force, a positioning pin 35 is also provided between the pressure frame strip 2 and the frame 131, and the frame 131 and / or the pressure frame strip 2 are provided with a pin hole 23 for the positioning pin 35 to extend into.
[0031] like Figure 2 As shown, the lock buckle 31 described in this embodiment includes a base 311, two fixing blocks 312 are provided on the base 311, a slot 313 for inserting the lock core 32 is formed between the two fixing blocks 312, a mounting hole is passed through the fixing block 312 and one end of the mounting hole is connected to the slot 313, a clamping block 314, a reset member and an adjusting member 315 are provided in the mounting hole, the clamping block 314 is located at one end of the mounting hole close to the slot 313, the adjusting member 315 is threadedly connected to one end of the mounting hole away from the slot 313, the reset member is limited between the clamping block 314 and the adjusting member 315, and the reset member acts on the clamping block 314 to make the clamping block 314 partially exposed from the mounting hole and inserted into the slot 313.
[0032] The lock core 32 described in the present embodiment is provided with a mounting seat 321 for fixing, and the side wall of the lock core 32 is provided with a groove 322. When the lock core 32 is inserted into the slot 313, the lock core 32 acts on the block 314 and makes the block 314 retreat into the mounting hole, thereby increasing the opening of the slot 313 so that the lock core 32 can be normally inserted into the slot 313. After the lock core 32 is fully inserted, the groove 322 of the lock core 32 is aligned with the block 314, and the block 314 moves toward the slot 313 under the action of the reset member and is embedded in the groove 322, thereby reducing the possibility of the lock core 32 arbitrarily detaching from the slot 313, thereby improving the connection stability between the pressure frame strip 2 and the mahjong machine 1.
[0033] In this embodiment, both fixing blocks 312 are provided with card blocks 314, and corresponding grooves 322 are also provided on both sides of the lock core 32. After the lock core 32 is inserted into the slot 313, the two card blocks 314 are close to each other and embedded in the grooves 322 on both sides of the lock core 32 under the action of the reset member. At this time, the distance between the two card blocks 314 is smaller than the width of the bottom end of the lock core 32. At the same time, the two card blocks 314 clamp the lock core 32 from both sides of the lock core 32, thereby increasing the resistance of the lock core 32 to detach from the lock buckle 31, reducing the possibility of the lock core 32 arbitrarily detaching from the lock buckle 31, and improving the connection stability between the lock core 32 and the lock buckle 31.
[0034] It should be noted that, in other embodiments, the lock buckle 31 may also be provided with a card block 314, and the card block 314 is arranged in one of the fixed blocks 312. The corresponding lock core 32 may also be provided with a groove 322. After the lock core 32 is inserted into the slot 313, the card block 314 is embedded in the groove 322. The distance between the card block 314 and the other fixed block 312 is smaller than the width of the bottom end of the lock core 32. At the same time, the card block 314 acts on the lock core 32, so that the lock core 32 is offset from the other fixed block 312, thereby increasing the resistance of the lock core 32 to detach from the lock buckle 31 and improving the connection stability between the lock core 32 and the lock buckle 31.
[0035] In order to prevent the lock buckle 31 and the lock core 32 from getting stuck, the side wall of the bottom end of the lock core 32 in this embodiment is provided with a guide surface 323, and the guide surface 323 is located on the lower side of the groove 322 and smoothly transitions with the edge of the groove 322. In addition, the surface of the end of the block 314 is a smooth curved surface or the end of the block 314 is hemispherical.
[0036] In order to reduce the possibility of the block 314 being separated from the mounting hole, in this embodiment, a limiting rib is provided at one end of the block 314 facing the reset member, and the limiting rib protrudes from the outer peripheral side of the block 314. A step surface is provided at one end of the mounting hole close to the slot 313. In the absence of external force, the reset member acts on the block 314 and moves the block 314 toward the slot 313. When the block 314 moves to the end of the mounting hole, the limiting rib and the step surface are abutted against each other, thereby limiting the block 314 from being separated from the mounting hole, thereby improving the stability of the overall structure of the lock buckle 31 and helping to increase the service life of the lock buckle 31.
[0037] The pressing frame strip 2 described in this embodiment includes four side portions 21, and the four side portions 21 are arranged in a rectangular shape. The connection between two adjacent side portions 21 forms a corner portion 22. The lock buckle 31 is fixed to the frame of the mahjong machine 1 through a base 311, and the lock core 32 is fixed to the bottom surface of the pressing frame strip 2 through a mounting seat 321. The lock core 32 is fixed to the bottom surface of the side portion 21. In order to improve the connection stability between the pressing frame strip 2 and the mahjong machine 1, in this embodiment, each side portion 21 of the pressing frame strip 2 is provided with two lock cores 32, and each frame 131 of the corresponding mahjong machine 1 is provided with two lock buckles 31. In addition, a chip box 132 is provided on the side of the mahjong machine 1, and the two lock buckles 31 are respectively located on both sides of the chip box 132, which can avoid conflict between the installation of the lock buckle 31 and the chip box 132, and at the same time, it can also make the installation of the lock buckle 31 more secure, thereby improving the connection stability between the pressing frame strip 2 and the mahjong machine 1.
[0038] Of course, it is understandable that in other embodiments, the lock buckle 31 can also be set on the bottom surface of the frame pressure strip 2, and the corresponding lock core 32 can be set on the frame of the mahjong machine 1; regarding the number of lock buckles 31 and lock cores 32, in other embodiments, each side 21 of the frame pressure strip 2 can also be provided with 1 lock core 32 or more than 2 lock cores 32, and the number of lock buckles 31 in the corresponding frame 131 is the same as the number of lock cores 32.
[0039] like Figure 3 As shown, the pin hole 23 in the present embodiment is located at the bottom end surface of the corner portion 22, and the positioning pin 35 is integrally formed with the mahjong machine 1. When the frame pressing strip 2 is installed into the frame 131, the positioning pin 35 is inserted into the pin hole 23 to realize the plug-in connection between the positioning pin 35 and the pin hole 23; of course, it can be understood that in other embodiments, the frame pressing strip 2 and the frame 131 can be provided with pin holes 23, and after the frame pressing strip 2 is installed into the frame 131, the two ends of the positioning pin 35 are respectively inserted into the pin holes 23 in the frame pressing strip 2 and the frame 131; or the pin hole 23 can also be provided in the frame 131, and the positioning pin 35 is integrally formed with the frame pressing strip 2.
[0040] The locking clasp 31 is provided with the locking clasp 32 at the bottom of the locking clasp 31, and the locking clasp 32 is provided with the locking clasp 32 at the bottom of the locking clasp 31. When the locking clasp 31 is in the state of being folded, the locking clasp 32 is provided with the locking clasp 32 at the bottom of the locking clasp 31, and the locking clasp 32 is provided with the locking clasp 32 at the bottom of the locking clasp 31. Example
[0041] like Figure 4 As shown, this embodiment shows a mahjong machine 1, including a support base 11, a column 12 and a main body 13, the column 12 is rotatably connected to the main body 13, the upper surface of the main body 13 is provided with a cover plate, a frame 131 on the outer peripheral side of the cover plate and a pressure frame strip 2 installed on the frame 131, a connecting device is provided between the frame 131 and the pressure frame strip 2, the connecting device includes a magnetic suction member 33 and an adsorbent 34 that are adsorbed and matched, one of the magnetic suction member 33 and the adsorbent 34 is arranged on the frame 131, and the other is arranged on the pressure frame strip 2, a positioning pin 35 is also provided between the pressure frame strip 2 and the frame 131, and the frame 131 and / or the pressure frame strip 2 are provided with a pin hole 23 for the positioning pin 35 to extend into.
[0042] In this embodiment, the magnetic attraction member 33 is a magnet, and the adsorbent 34 is a long strip of metal. The magnet is fixed to the frame 131, and the adsorbent 34 is fixed to the edge 21 of the frame pressure strip 2 and is distributed along the length direction of the edge 21. In order to increase the adsorption force between the magnetic attraction member 33 and the adsorbent 34, in this embodiment, two magnetic attraction members 33 are provided in each frame 131 of the mahjong machine 1, and are respectively located on both sides of the chip box 132; it should be noted that in other embodiments, the magnetic attraction member 33 can also be arranged on the edge 21, and the corresponding adsorbent 34 can also be arranged on the frame 131; it should also be noted that in other embodiments, the adsorbent 34 can also be a magnet, and the adsorbent 34 is installed at the bottom of the frame pressure strip 2 and corresponds to the magnetic attraction member 33.
[0043] The pin hole 23 described in this embodiment is located at the bottom end surface of the corner 22, and the positioning pin 35 is integrally formed with the mahjong machine 1. When the frame pressing strip 2 is installed in the frame 131, the positioning pin 35 is inserted into the pin hole 23 to realize the plug-in connection between the positioning pin 35 and the pin hole 23; of course, it can be understood that in other embodiments, the frame pressing strip 2 and the frame 131 can be provided with pin holes 23. After the frame pressing strip 2 is installed in the frame 131, the two ends of the positioning pin 35 are respectively inserted into the pin holes 23 in the frame pressing strip 2 and the frame 131; or the pin hole 23 can also be provided in the frame 131, and the positioning pin 35 is integrally formed with the frame pressing strip 2.
[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.
Claims
1. A mahjong machine, comprising a main machine, wherein the upper surface of the main machine is provided with a cover plate, a frame on the outer peripheral side of the cover plate, and a frame pressing strip installed on the frame, and a connecting device is provided between the frame pressing strip and the frame, characterized in that: The connecting device includes a lock buckle and a lock core that are snap-fitted together. One of the lock buckle and the lock core is arranged in the frame, and the other is arranged on the lower surface of the frame pressure strip. After the lock buckle and the lock core are snap-fitted, they are separated by external force. A positioning pin is also provided between the frame pressure strip and the frame, and the frame and / or the frame pressure strip are provided with a pin hole for the positioning pin to extend into.
2. A mahjong machine according to claim 1, characterized in that: The lock buckle comprises a clamping block, a reset member and a slot for inserting a lock core, the reset member acts on the clamping block and causes the clamping block to have a movement tendency to reduce the slot opening, and the clamping block and / or the lock core are provided with a guide surface for guiding the lock core to leave the slot.
3. A mahjong machine according to claim 2, characterized in that: The lock also includes a base, which is provided with two fixing blocks, the slot is formed between the two fixing blocks, a mounting hole is provided in the fixing block, a card block is slidably connected in the mounting hole, and a reset member acts on the card block to make the card block partially exposed from the mounting hole and extend into the slot.
4. A mahjong machine according to claim 3, characterized in that: The mounting hole passes through the fixing block and is connected with the slot. An adjusting member is threadedly connected to one end of the mounting hole away from the slot. The reset member is limited between the clamping block and the adjusting member.
5. A mahjong machine according to claim 3, characterized in that: A step surface is provided at one end of the mounting hole close to the slot, and a limiting rib is provided on the outer peripheral side of the clamping block. The step surface and the limiting rib abut against each other to limit the clamping block from leaving the mounting hole.
6. A mahjong machine according to claim 2, characterized in that: The side wall of the lock core is provided with a groove, the lock core is inserted into the slot so that the card block is embedded in the groove, and the guide surface is arranged between the end of the lock core and the groove.
7. A mahjong machine according to claim 1, characterized in that: The frame pressing strip comprises an edge portion and a corner portion, wherein the corner portion is located at the connection between two adjacent edge portions, a pin hole is arranged at the bottom end surface of the corner portion, and the positioning pin is integrally formed with the frame.
8. A mahjong machine, comprising a main machine, wherein the upper surface of the main machine is provided with a cover plate, a frame on the outer peripheral side of the cover plate, and a frame pressing strip installed on the frame, and a connecting device is provided between the frame pressing strip and the frame, characterized in that: The connecting device includes a magnetic attraction part and an adsorption body that are adsorbed and matched. One of the magnetic attraction part and the adsorption body is arranged in the frame, and the other is arranged in the frame pressure strip. A positioning pin is also arranged between the frame pressure strip and the frame. The frame and / or the frame pressure strip are provided with a pin hole for the positioning pin to extend into.
9. A mahjong machine according to claim 8, characterized in that: The magnetic attraction piece is arranged in the frame, the adsorbent is a metal piece, the adsorbent is fixed to the frame pressing strip, and is distributed along the length direction of the frame pressing strip; or the adsorbent is a magnet, the adsorbent is installed at the bottom of the frame pressing strip and corresponds to the magnetic attraction piece.
10. A mahjong machine according to claim 8, characterized in that: The frame pressing strip comprises an edge portion and a corner portion, wherein the corner portion is located at the connection between two adjacent edge portions, a pin hole is arranged at the bottom end surface of the corner portion, and the positioning pin is integrally formed with the frame.